Chapter 7: the Nervous System
... Many types of sensory receptors • In response to physical stimulation, sensory receptor cells create electrical signals that travel to the central nervous system • Specialized senses (hearing, sight, smell & taste) have special receptor cells to be discussed in chapter 8 ...
... Many types of sensory receptors • In response to physical stimulation, sensory receptor cells create electrical signals that travel to the central nervous system • Specialized senses (hearing, sight, smell & taste) have special receptor cells to be discussed in chapter 8 ...
Nervous System Reading from SparkNotes
... communicate across the synaptic clefts by the means of chemical signals known as neurotransmitters. When an action potential reaches the synapse, it causes the release of vesicles of these neurotransmitters, which diffuse across the gap and bind to receptors in the dendrites of the adjacent neuron. ...
... communicate across the synaptic clefts by the means of chemical signals known as neurotransmitters. When an action potential reaches the synapse, it causes the release of vesicles of these neurotransmitters, which diffuse across the gap and bind to receptors in the dendrites of the adjacent neuron. ...
Nervous Tissue (Ch
... - sensory (afferent) - receptor — CNS - motor (efferent) - CNS --- effector - association (interneurons) - connect sensory to motor and to each other - 90% of all neurons ...
... - sensory (afferent) - receptor — CNS - motor (efferent) - CNS --- effector - association (interneurons) - connect sensory to motor and to each other - 90% of all neurons ...
Slide ()
... The olfactory system. Odorants are detected by olfactory sensory neurons in the olfactory epithelium, which lines part of the nasal cavity. The axons of these neurons project to the olfactory bulb where they terminate on mitral and tufted cell relay neurons within glomeruli. The relay neuron axons p ...
... The olfactory system. Odorants are detected by olfactory sensory neurons in the olfactory epithelium, which lines part of the nasal cavity. The axons of these neurons project to the olfactory bulb where they terminate on mitral and tufted cell relay neurons within glomeruli. The relay neuron axons p ...
Chapter Outlines - Cengage Learning
... the pheromones of others of their kind and pass them into a specialized portion of the olfactory system called the vomeronasal organ. Although no solid evidence exists to suggest the action of pheromones in humans, it is known that people learn to associate smells with sexual activity or certain peo ...
... the pheromones of others of their kind and pass them into a specialized portion of the olfactory system called the vomeronasal organ. Although no solid evidence exists to suggest the action of pheromones in humans, it is known that people learn to associate smells with sexual activity or certain peo ...
Unit 8 Review Sheet[1]
... 4. The ear drum vibrates the three small bones in the middle ear called the ossicles (hammer, anvil, stirrup) 5. The stirrup vibrates the oval window on the cochlea 6. Inside the cochlea is the basilar membrane with tiny hair cells that transduce this physical energy into neural impulses 7. Hair cel ...
... 4. The ear drum vibrates the three small bones in the middle ear called the ossicles (hammer, anvil, stirrup) 5. The stirrup vibrates the oval window on the cochlea 6. Inside the cochlea is the basilar membrane with tiny hair cells that transduce this physical energy into neural impulses 7. Hair cel ...
Check Yourself
... 2. Opiate-like substance found in the brain 4. Nervous system controlling heart, pupils of the eye, etc. 6. Chemical that affects a living organism 7. Powerful stimulant derived from a South American plant 10. An signal travels along the axon. 13. Drug that makes you drowsy, drunk, uncoordinated 14. ...
... 2. Opiate-like substance found in the brain 4. Nervous system controlling heart, pupils of the eye, etc. 6. Chemical that affects a living organism 7. Powerful stimulant derived from a South American plant 10. An signal travels along the axon. 13. Drug that makes you drowsy, drunk, uncoordinated 14. ...
Heart
... lipid double-layer … gives basic physical features to plasmalema … on / in: floating or anchored proteins (ion channels) proteins … anchored in lipid double-layer in different ways … give biological activity and specificity to plasmalema glykokalyx … protective cover of some cells formed of oligosac ...
... lipid double-layer … gives basic physical features to plasmalema … on / in: floating or anchored proteins (ion channels) proteins … anchored in lipid double-layer in different ways … give biological activity and specificity to plasmalema glykokalyx … protective cover of some cells formed of oligosac ...
Ch. 48 - Ltcconline.net
... 1. neurotransmitter binds to a receptor that is not part of an ion channel a. activates a signal transduction pathway involving a second messenger in postsynaptic cell b. slower onset but last longer 2. eg. when norepinephrine binds to its receptor, a G protein is activated, which ultimately opens m ...
... 1. neurotransmitter binds to a receptor that is not part of an ion channel a. activates a signal transduction pathway involving a second messenger in postsynaptic cell b. slower onset but last longer 2. eg. when norepinephrine binds to its receptor, a G protein is activated, which ultimately opens m ...
Unit: Regulation Notes
... • A reflex starts with the 1) receptor (recognizes the stimulus), goes to the 2) sensory neuron (sends signal to brain), to the 3) interneuron (routes the impulse to the correct part of the brain), to the 4) motor neuron (alerts the muscle), and then to the 5) effector (the muscle or gland) Ex. Touc ...
... • A reflex starts with the 1) receptor (recognizes the stimulus), goes to the 2) sensory neuron (sends signal to brain), to the 3) interneuron (routes the impulse to the correct part of the brain), to the 4) motor neuron (alerts the muscle), and then to the 5) effector (the muscle or gland) Ex. Touc ...
Andrew Rosen - Chapter 3: The Brain and Nervous System Intro
... Depolarization – When sodium channels open and membrane potential becomes more positive Repolarization – After the sodium channels close and the membrane potential becomes less positive ...
... Depolarization – When sodium channels open and membrane potential becomes more positive Repolarization – After the sodium channels close and the membrane potential becomes less positive ...
PHYSIOLOGY Basic Level Crossword
... activity of another organ or group of cells, its target organ. 17. Any specific chemical agent released by a presynaptic cell, on excitation, that crosses the synapse to stimulate or inhibit the postsynaptic cell. 18. A group of cells, of one or several types, that serve a specific function in the b ...
... activity of another organ or group of cells, its target organ. 17. Any specific chemical agent released by a presynaptic cell, on excitation, that crosses the synapse to stimulate or inhibit the postsynaptic cell. 18. A group of cells, of one or several types, that serve a specific function in the b ...
Physiology SENSORY PHYSIOLOGY Sensory Receptors Martin Paré
... To provide us with information about the environment outside as well as inside our bodies. Caveat: Sensory signals can reach conscious awareness, but others are processed completely at the subconscious level. ...
... To provide us with information about the environment outside as well as inside our bodies. Caveat: Sensory signals can reach conscious awareness, but others are processed completely at the subconscious level. ...
MS Word Version
... which neurotransmitter is involved, and the specific receptor found on that cell. ...
... which neurotransmitter is involved, and the specific receptor found on that cell. ...
Visual categorization shapes feature selectivity in the primate
... Eye Movement & Vision Research LAB Hwang, Jae Won ...
... Eye Movement & Vision Research LAB Hwang, Jae Won ...
Unit2-KA3a-NervousSystem
... - uncontrolled blood glucose levels can cause problems with osmosis in cells. A communication pathway that has failed due to a fault in release or a failure to respond to insulin High blood glucose levels (see above n.22) Injections of insulin to help the uptake of glucose from the blood to the cell ...
... - uncontrolled blood glucose levels can cause problems with osmosis in cells. A communication pathway that has failed due to a fault in release or a failure to respond to insulin High blood glucose levels (see above n.22) Injections of insulin to help the uptake of glucose from the blood to the cell ...
Nerve Impulse Transmission
... • There is a tiny gap between the synaptic knobs of one neuron and the dendrites of the next one. • This gap is called the synapse or synaptic cleft. • The nerve impulse needs to cross this gap and it does so by the release of special chemicals called neurotransmitters. ...
... • There is a tiny gap between the synaptic knobs of one neuron and the dendrites of the next one. • This gap is called the synapse or synaptic cleft. • The nerve impulse needs to cross this gap and it does so by the release of special chemicals called neurotransmitters. ...
document
... NERVOUS SYSTEM – Fast action, uses electrical impulses. Changes by this system tend to be fast but temporary. ENDOCRINE SYSTEM – Slow action, uses chemicals called HORMONES released into the blood. Changes by this system tend to be slow but long lasting. ...
... NERVOUS SYSTEM – Fast action, uses electrical impulses. Changes by this system tend to be fast but temporary. ENDOCRINE SYSTEM – Slow action, uses chemicals called HORMONES released into the blood. Changes by this system tend to be slow but long lasting. ...
Biology 118 - Exam 2
... 26. The brain grows most rapidly between the ages of _______ years; this growth is driven by the rapid production of ______. a. 0 to 3 – CSF b. 5 to 10 - myelin c. 0 to 3 – new neurons * d. 5-10 – meninges 27. Vitamin _____ has been added to breads and cereals since 1998 in the U.S. to reduce the r ...
... 26. The brain grows most rapidly between the ages of _______ years; this growth is driven by the rapid production of ______. a. 0 to 3 – CSF b. 5 to 10 - myelin c. 0 to 3 – new neurons * d. 5-10 – meninges 27. Vitamin _____ has been added to breads and cereals since 1998 in the U.S. to reduce the r ...
Chapter 7: Structure of Nervous System
... Central nervous system (CNS) = brain and spinal cord Peripheral nervous system (PNS) = cranial and spinal nerves Consists of 2 kinds of cells: Neurons and supporting cells (glial cells). Neurons are ______________________ units of NS Glial cells maintain homeostasis. Are 5X more than neu ...
... Central nervous system (CNS) = brain and spinal cord Peripheral nervous system (PNS) = cranial and spinal nerves Consists of 2 kinds of cells: Neurons and supporting cells (glial cells). Neurons are ______________________ units of NS Glial cells maintain homeostasis. Are 5X more than neu ...
Stimulus (physiology)
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction. These sensory receptors can receive information from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanorceptors. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to react is made. Although stimuli commonly cause the body to respond, it is the CNS that finally determines whether a signal causes a reaction or not.